I am working on a web-based video editor. I wanted to be able to take clips from multiple video sources and create a single video from them (probably using handbrake of ffmpeg).
Here's an example of what I'm looking to do: http://www.kaltura.org/apis/html5lib/mwEmbed/modules/Sequencer/tests/Sequence_Editor.html
It reads from a SMIL file that provides start times and durations (can't post a link but it can be found by viewing the source for the previous link).
What I can't figure out is how this pulls those durations and times and concatenates them into a single video. You can right click on the 'finished' product and see the source file is changing, but the timeline bar displays it as if it is one single video.